A radiation is incident on a metal surface of work function 2.3 eV. The wavelength of incident radiation is 60 nm, then the number of photoelectrons is

In a photo electric set up the radiation from Balmer series of hydrogen atoms are Incident on a metal of work function 2 eV. Find wavelength of incident radiations lying between 450 nm to 700 nm. Find the maximum kinetic energy of the photoelectron emitted (hc1242 eV nm).

The radiation of wavelength 332 nm is incident on a metal of work function 1.70 eV. The value of the stopping potential will be

The radiation of wavelength 332 nm is incident on a metal of work function 1.70 eV. The value of the stopping potential will be

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be

Work function of a photosensitive metal is 3eV. The wavelength of incident radiations which can just eject photoelectrons from the metal is

The work function of a metal is 4 eV. What should be the wavelength of the incident radiation for the emission of photoelectrons of zero velocity ?

Radiation of energy 6.5 eV is incident on a metal surface whose work function is 4.2 eV. What is the potential difference that should be applied to stop the fastest photoelectrons emitted by the metal surface ?

A light of wavelength 600 nm is incident on a metal surface. When light of wavelength 400 nm is incident, the maximum kinetic energy of the emitted photoelectrons is doubled. The work function of the metals is